Harrow



(No Model.) 2 Sheets-Sheet 1. J. B. SHORES. HARROW N0. 425,148.Patented. Apr. 8, 1890.

2 Sheets-Shet 2.

(No Modem J. .B. SHORES. v HARROW. No. 425,148. Patented Apr. 8, 1890.

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UNITED STATES PATENT OFFICE.

JOHN BYRON SHORES, OF OASSVILLE, TENNESSEE.

HARROW.

SPECIFICATION forming part of Letters Patent No. 425,148, dated April 8,1890.

Application filed December 28, 1889. Serial No. 335,215. (No model.)

To all whom it may concern:

Be it known that I, JOHN BYRON SHORES, a citizen of the United States,residing at Oassville, in the county of \Vhite and State of Tennessee,have invented a new and useful Harrow, of which the following is aspecification.

This invention relates to that class of harrows in which the teeth arefitted in revolving beams or cross-bars; and it hasfor its object toconstruct a harrow of this class which shall possess superior advantagesin point of simplicity, durability, and general efficiency.

With these ends in view the invention consists in the improvedconstruction, arrangement, and combination of parts, which will behereinafter fully described, and particularly pointed out in the claims.

In the drawings hereto annexed, Figure 1 is a plan View of a harrowembodying my improvements. Fig. 2is a longitudinal vertical sectionalview of the same. Fig. 3 is a perspective detail view of one of thejoints or couplings between the harrow-bars. Fig. l is a detail viewshowing a modified construction of the harrow-teeth.

Like numerals of reference indicate like parts in all the figures.

Myimproved harrow is composed of a series of parallel transverse bars orrollers, which may be round or polygonalincross-section, and which maybe constructed of Wood or metal, or of wood with metallic cores orgudgeons. When constructed of wood, the said rollers are bound at theends with metallic ferrules.

The bars or rollers, which are designated by 1 1, are each provided witha series of radially-extending teeth or spikes 2, which may be eitherpointed for use in mellow land, or they may be providedwith sharp edgesof suitable width, as shown at 3 in Fig. 4 of the drawings. The ends ofthe rollers are provided with gudgeofns 4, which are journaled in thelinks, which are designated by 5 5. Said links are provided at theirfront and rear ends with vertical perforations G to receive thecoupling-bolts 7, and said vertical perforations are intersected byhorizontal slots 8 to receive the ends of the coupling-links 9, by meansof which the links or straps in which the two ends of the rollers arejournaled may be flexibly connected. Each of the straps 5 is providednear its rear end with an outwardly-extending shoulder or offset 10 toprovide for the gradually-increasing length of the rollers, the frontone of which is the shortest, each succeeding roller being in practicemade some five inches longer thanthe one in front of'it.

The straps 5, in which the front roller is journaled, are provided withforwardly-extending and upwardly-curved arms 11, the front ends of whichhave inwardl extending arms 12, to which the draft-bar 13 is connectedby means of bolts 14, two of which are provided at their front ends withhooks 15 for the attachment of the draft. The straps 111 which the tworear rollers are journaled are made integralwith each other, and theteeth of the said two rear rollers intermesh with each other, as will beclearly seen by reference to Fig. 1 of the drawings. The device is thusconstructed for the reason that the front rollers or toothed bars serveto break up all the hard clods, while the rear rollers, having theirteeth arranged closely together, as shown, are intended to pulverize thesoil more finely than could be done if the teeth were not arranged thusclosely together. The rear ends of the rear straps 5 are connected bymeans of asuitableconnecting-rod 16. The teeth or spikes arescrew-threaded at their inner ends to engage correspondiugly-threadedopenings or recesses in the rollers, in which they are in this mannersecured.

The operation and advantages of this invention will be readilyunderstood from the foregoing description, taken in connection with thedrawings hereto annexed.

The construction of my improved harrow is exceedingly simple andinexpensive, and the toothed bars or rollers, being flexibly connectedin the manner herein described, will readily adapt themselves to anyinequalities in the surface of the ground. As the harrow passes over theland the teeth or spikes will enter the soil and penetrate to some depththerein, and the rollers will thus be caused to revolve, causing theteeth or spikes to thoroughly stir, agitate, and pulverize the soil.

The harrow may be readily taken apart for repairs or for the insertionof additional toothed rollers, and, owing to the flexible connections,the device may be folded into a comparatively small space fortransportation or storage.

Having thus described my invention, what I claim is- 1. A harrowcomposed of a series of toothed bars or rollers, each of asomewhatgreater length than the one next in front of: it, the ends ofsaid rollers being journaled in flexibly-connected straps provided neartheir rear ends with ontwardly-extending shoulders or offsets to providefor the gradually-increased length of the rollers, substantially as andfor the purpose set forth.

2. In a harrow, the herein-described straps having the shoulders oroitsets and provided at their front and rear ends with thevertically-perforated ears and intersectinghorizontal recesses, incombination with the connecting bolts and links and the rollersjournaled in said straps and having" radially-ex- \Vitnesses:

'J. J. BRADFORD, I W. SPERRY.

